Update git submodules

* Update docs/submodules/vfc/nfvo/lcm.git from branch 'master'
  to 7b6d6d6bc1a7b6ff6db326a4b4c5d59454707ee5
  - Merge "fix NS instantiation serializer error"
  - fix NS instantiation serializer error
    
    fix NS instantiation serializer error
    
    Change-Id: I01fea83f0f2afb5e3413e3168d7abf2c6ce4dfbb
    Issue-ID: VFC-1214
    Signed-off-by: maopengzhang <zhang.maopeng1@zte.com.cn>
    
diff --git a/docs/submodules/vfc/nfvo/lcm.git b/docs/submodules/vfc/nfvo/lcm.git
index 7f19dc2..7b6d6d6 160000
--- a/docs/submodules/vfc/nfvo/lcm.git
+++ b/docs/submodules/vfc/nfvo/lcm.git
@@ -1 +1 @@
-Subproject commit 7f19dc2bda0f5aed452a666c1af305bf56c94a30
+Subproject commit 7b6d6d6bc1a7b6ff6db326a4b4c5d59454707ee5